Federal contractor · HOUMA, LA

THOMA-SEA MARINE CONSTRUCTORS, L.L.C.

THOMA-SEA MARINE CONSTRUCTORS, L.L.C. received $41.1M in federal contract obligations in FY2026, on 17 awards (+9.5% vs FY2025). Since FY2017: $728.9M. Its largest customer was National Oceanic and Atmospheric Administration ($24.3M).

Obligations · FY2026
$41.1M
New awards
17
Sole-source
1.8%
Single offer
6.2%
UEI
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Small business
Open in the contracts explorerRelationship graph

Company family

Grouped from reported parent companies (UEI) and, where marked, AI judgments that two records name the same organization or group.

2 registered entities of the same company or corporate group, $41.1M in FY2026 together.

  1. THOMA-SEA MARINE CONSTRUCTORS, L.L.C.HOUMA, LA · Family page
    $41.1M
  2. THOMA-SEA MARINE CONSTRUCTORS LLCLOCKPORT, LA
    $0

Spending by fiscal year

Obligations per federal fiscal year (October–September).

  1. 6.6MFY2017
  2. 2.9MFY2018
  3. 52.8MFY2019
  4. 17.7MFY2020
  5. 205MFY2021
  6. 10.1MFY2022
  7. 324.5MFY2023
  8. 30.7MFY2024
  9. 37.5MFY2025
  10. 41.1MFY2026

Top buying agencies

Obligations in FY2026.

  1. National Oceanic and Atmospheric Administration$24.3M59%
    1 awards
  2. U.S. Coast Guard$10.6M26%
    10 awards
  3. Department of the Army$6.2M15%
    6 awards

What was bought · Where the work was performed

Obligations in FY2026.

What was bought

  1. Weapons, aircraft, ships & vehicles$27.2M66%
  2. Equipment maintenance$13.7M33%
  3. Construction & real property$251.5K0.6%

Where the work was performed

  1. Terrebonne Parish, LA$41.1M100%

Integrity signals

Shares of the year's obligations, next to the country's.

  • Low competition8.0%
    US 39% · $3.3M
  • Sole-source awards1.8%
    US 30% · $721.5K
  • Single-offer competitions6.2%
    US 8.7% · $2.6M
  • Urgency justifications0.0%
    US 5.1% · $0

A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.

Agencies awarding it sole-source contracts

  1. Department of the Army$721.5K
    Department of Defense · 1 awards

Largest awards

  1. DETAIL DESIGN AND CONSTRUCTION OF CLASS B VESSELS - NOAA$331.2M
    National Oceanic and Atmospheric Administration· Terrebonne Parish, LA· Weapons, aircraft, ships & vehicles· Jun 23, 2023 – Jul 13, 2026· 1305M223CNMAN0006
  2. SPECIALTY STEEL BARGE$39.5M
    Department of the Army· Terrebonne Parish, LA· Weapons, aircraft, ships & vehicles· Sep 23, 2019 – Apr 30, 2026· W912BU19C0042
  3. 2801 NAN DRIFTMASTER REPLACEMENT$26.4M
    Department of the Army· Terrebonne Parish, LA· Weapons, aircraft, ships & vehicles· Mar 5, 2021 – May 26, 2026· W912BU21C0012
  4. PHASE 1 : SHIPYARD PREPERATION$22.5M
    Department of the Army· Terrebonne Parish, LA· Equipment maintenance· Sep 27, 2024 – May 26, 2026· W912BU24C0042
  5. USCGC JOSEPH NAPIER DD FY25$4.2M
    U.S. Coast Guard· Terrebonne Parish, LA· Equipment maintenance· Feb 20, 2025 – Dec 2, 2025· 70Z08025CPBPL0009
  6. DREDGE MURDEN SHIPYARD REPAIR SERVICES$2.9M
    Department of the Army· Terrebonne Parish, LA· Equipment maintenance· Apr 14, 2025 – Apr 14, 2026· W912PM25P0045
  7. CGC HARRY CLAIBORNE DRYDOCK REPAIRS$2.9M
    U.S. Coast Guard· Terrebonne Parish, LA· Equipment maintenance· Apr 23, 2026 – Aug 24, 2026· 70Z08526FIBCT0051
  8. CGC AXE DD FY26$2M
    U.S. Coast Guard· Terrebonne Parish, LA· Equipment maintenance· Dec 3, 2025 – Jul 22, 2026· 70Z08526CIBCT0002

Competitors

Companies that win from the same buyers in the same markets: obligations by agency and industry compared over the last three fiscal years.

Compared on 5 markets (agency × industry), FY2024–FY2026.

  1. BAY SHIP & YACHT CO$76.6M−65% in FY2026
    ALAMEDA, CA · 59% of this company's obligations are in markets they both serveArmy · Ship and boat buildingU.S. Coast Guard · Ship and boat buildingNational Oceanic and Atmospheric Administration · Ship and boat building+1 more
  2. LAKE UNION DRYDOCK COMPANY$67.5M+441% in FY2026
    SEATTLE, WA · 50% of this company's obligations are in markets they both serveU.S. Coast Guard · Ship and boat buildingNational Oceanic and Atmospheric Administration · Ship and boat buildingNavy · Ship and boat building
  3. GUNDERSON MARINE LLC$50.9M+30% in FY2026
    PORTLAND, OR · 42% of this company's obligations are in markets they both serveArmy · Ship and boat buildingNavy · Ship and boat building

Showing the top 3 of 25 competitors. Open the profile for the full list.

Who sells to the same buyers in the same markets, not who wins against whom on a given contract. Prime contract obligations by the agency and NAICS code of each award; subawards are never added. A company is a family of legal entities, joined by parent UEI or, in part, by an AI reading of names.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 9, 2026, loaded Oct 9, 2026 · FY2024–FY2026.

Lobbying and PAC activity

Organizations in House lobbying disclosures and FEC records whose names an AI judgment matched to this company. Those records carry no identifier shared with contracts, so every match is by name.

Across the company family of THOMA-SEA MARINE CONSTRUCTORS, L.L.C. (2 recipients).

Matched organizations

  • Thoma -Sea Marine Constructors, LLCAI match · 100%
Lobbying · 2025
$100K
4 reports
Lobbying · 2023–2026
$400K

Lobbying by year

  1. 2023$120K
    4 reports
  2. 2024$120K
    4 reports
  3. 2025$100K
    4 reports
  4. 2026$60K
    2 reports

Top issues

  1. Marine, maritime, boating and fisheries14 reports

Who was contacted

  1. Office of Administration14 reports
  2. U.S. HOUSE OF REPRESENTATIVES14 reports
  3. U.S. SENATE14 reports

Houses of Congress and federal agencies the reports list as contacted (a report names every one for all its issues).

Lobbying firms hired

  1. Mercury Public Affairs, LLC$400K
    14 reports

Registrants who are individuals are counted, not named.

Lobbying amounts are the filers' own good-faith estimates on quarterly LD-2 reports (the law asks for amounts rounded to $10,000; under $5,000 need not be itemized), latest amendment only. When an organization files its own report, it replaces what outside firms report for it that quarter. Matches are by name. Lobbying and political giving are legal and public: they show engagement with government, not influence over any award. Correlation is not influence: these organizations' lobbying and their contracts are shown side by side, and nothing here implies either affected the other.

Source: Lobbying disclosures (LD-1 registrations, LD-2 quarterly reports, LD-203 contribution reports) (Clerk of the U.S. House of Representatives), data current to Oct 9, 2026, loaded Oct 9, 2026 · 2023–2026.

Source: Committees, candidates and committee contributions to candidates (Federal Election Commission), data current to Oct 9, 2026, loaded Oct 9, 2026 · 2026, 2024, 2022.

Matches: Analisa AI name judgments (entity-match@1), updated Sep 30, 2026.

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 9, 2026, loaded Oct 9, 2026.